Collaboration across industries and governments is essential to address the world's energy challenges.

The reward of a thing well done is to have done it.

缓慢的程度与记忆的强度成正比；速度的程度与遗忘的强度成正比。

和其它动物相比较，婴儿在出生以后，要有更长的一段霎时间需要别人的照顾。